This is a guide to altricial passerines. It has an explanation of variables used for aging birds and an explanation of methodology employed, and provides information obtained while recording the early aging of the Dusky Flycatcher, the Carolina...

This is a description of the molt and aging criteria for four grassland passerines. The species covered are Sprague's Pipit, Grasshopper sparrow, Baird's sparrows, and Chestnut-collared Longspurs. Molt information is important for determining...

The following is a time line of significant events that have affected the land and ownership of the property now comprising the National Conservation Training Center (NCTC), with an emphasis on the period from early European settlement until...

This review of the green turtle, Chelonia mydas, has been prepared following the FAO fisheries synopsis outline of Rose (1965) and as applied to marine turtles by Hirth (1971b). The main purposes of this synopsis are to bring together the current...

Global wind patterns help to move millions of migrating birds and bats through the Great Lakes
region, where shorelines provide important stopover habitat. Shorelines are thought to
concentrate migrants, as they offer a last refuge near a...

This is a preliminary biological assessment of Kirwin National Wildlife Refuge. Stimulation for the report was based on the concept that future decisions related to the biological portion of the Comprehensive Conservation Plan will be based on the...

The U.S. Fish and Wildlife Service is establishing a conservation area for the Bear River watershed in Idaho, Utah, and Wyoming. The Bear River Water-shed Conservation Area project will work with private landowners to establish up to 920,000 acres...